Answer:
Kp = 59
Explanation:
For the reaction:
Cl₂(g) + Br₂(g) ⇄ 2BrCl(g) Kp = 0,00029
The k of the reciprocal reaction is:
2BrCl(g) ⇄ Cl₂(g) + Br₂(g) Kp = 1/0,00029 = 3448
As the kp of the reaction that we need to calculate is the half of the last reaction, that is:
BrCl(g) ⇄ ¹/₂Cl₂(g) + ¹/₂Br₂(g) Kp is √3448 = 59
I hope it helps!